Vesper Sparrow

Vesper Sparrow

Pooecetes gramineus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability <5% · Rare
at Saguaro National Park
1,092 Verified sightings at Saguaro National Park From 2019 to 2026
5,246 Verified sightings across all 32 parks From 2019 to 2026
October Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Vesper Sparrow

The vesper sparrow (Pooecetes gramineus) is a medium-sized New World sparrow. The only member of the genus Pooecetes, it is a pale sparrow with brown streaks that breeds across the grasslands of northern North America. It migrates to winter in the southern United States and Mexico.

The vesper sparrow was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with the finches in the genus Fringilla and coined the binomial name Fringilla graminea. He gave the locality as New York. Gmelin based his own description on those for the "grass finch" that had been described by John Latham in 1783 and by Thomas Pennant in 1785. The vesper sparrow is now the only species placed in the genus Pooecetes that was introduced in 1858 by the American naturalist Spencer Baird. The genus name combines the Ancient Greek ποα (poa) meaning "grass" with οικητης (oikētēs) meaning "dweller". The specific epithet gramineus is Latin meaning "grassy" or "grass-like".

Three subspecies are recognised. P. g. gramineus (Gmelin, JF, 1789) – breeds in southeast Canada to east USA P. g. confinis Baird... Wikipedia →

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Daily sighting probability
1 Yellowstone National Park 🇺🇸 United States
~20%
2 Big Bend National Park 🇺🇸 United States
~10%
3 Grand Teton National Park 🇺🇸 United States
~10%
4 Rocky Mountain National Park 🇺🇸 United States
~10%
5 Badlands National Park 🇺🇸 United States
~10%
6 Zion National Park 🇺🇸 United States
~10%
7 Glacier National Park 🇺🇸 United States
<5%
8 Riding Mountain National Park 🇨🇦 Canada
<5%
9 Guadalupe Mountains National Park 🇺🇸 United States
<5%
10 Grand Canyon National Park 🇺🇸 United States
<5%
11 Saguaro National Park 🇺🇸 United States
<5%
12 El Vizcaíno Biosphere Reserve 🇲🇽 Mexico
<5%
13 Death Valley National Park 🇺🇸 United States
<5%
14 Jasper National Park 🇨🇦 Canada
<5%
15 Yosemite National Park 🇺🇸 United States
<5%
16 Banff National Park 🇨🇦 Canada
<5%
17 Joshua Tree National Park 🇺🇸 United States
<5%
18 Congaree National Park 🇺🇸 United States
<5%
19 Point Pelee National Park 🇨🇦 Canada
<5%
20 Great Smoky Mountains National Park 🇺🇸 United States
<5%
21 Channel Islands National Park 🇺🇸 United States
<5%
22 Sequoia and Kings Canyon National Parks 🇺🇸 United States
<5%
23 Shenandoah National Park 🇺🇸 United States
<5%
24 Pacific Rim National Park Reserve 🇨🇦 Canada
<5%
25 Olympic National Park 🇺🇸 United States
<5%
26 Acadia National Park 🇺🇸 United States
<5%
27 Isle Royale National Park 🇺🇸 United States
Insufficient data
28 Elk Island National Park 🇨🇦 Canada
Insufficient data
29 Bahía de Loreto National Park 🇲🇽 Mexico
Insufficient data
30 Cape Breton Highlands National Park 🇨🇦 Canada
Insufficient data
31 Everglades National Park 🇺🇸 United States
Insufficient data
32 Great Bear Rainforest 🇨🇦 Canada
Insufficient data

Quick answers

What are the chances of seeing a Vesper Sparrow in Saguaro National Park?

Under 5% of wildlife watchers report a Vesper Sparrow sighting in Saguaro National Park, based on 1,092 verified sightings from GBIF citizen-science data.

When is the best time to see Vesper Sparrow in Saguaro National Park?

October has the highest sighting rate for Vesper Sparrow in Saguaro National Park in our monthly data.

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